Context usage monitoring

[nthomsencph]

Summary

Display context window usage on task cards and in the task header by querying Claude Code's /context command via hooks.

Context

Dash has no visibility into context usage. Claude Code handles compaction internally and exposes context info via the /context slash command. This can be queried programmatically through the PTY on each agent turn without disrupting the user.

Implementation

• Query context usage by sending /context through the PTY, triggered asynchronously via hooks (e.g., on each Stop hook callback)
• Parse the structured output to extract token count / percentage
• Display a context usage indicator (token count or percentage bar) on task cards and in the task header
• Visual warning when context is running high, cueing users to start a new conversation or trigger /compact
• Surface compaction events in the task's activity timeline

References

• Inspired by pi.dev's visual context limit indicators and auto-compaction
• See docs/pidev-feature-analysis.md §6

[nthomsencph]

A task branch has been created for this issue:

testing-issues-a72

[nthomsencph]

A task branch has been created for this issue:

a-test-task-ed0